Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
my SIM900d is already been made like some sort of arduino shields...anyways, thanks yadavvlsi...just have to know what pin is needed to be connected on the arduino to be able to read,send and interpret text messages from my GSM module.